This may be difficult without drawings, but I'll give it a try. I assume you have the C-Tool installed correctly to allow removal of the cocking piece? If so, screw the cocking piece into the bolt body as far as it will go. Now back it out just a little until the edge of the cocking piece shroud lines up with the edge of the bolt handle shroud. At this point, one edge of the cutout of the C-Tool, the edge of the cocking piece shroud, and the edge of the bolt handle shroud should all be in a line. Now remove the C-Tool by backing off the secondary safety. It should slide in fine. Good luck!
